spi, serial: move to dma_transfer_direction

fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves spi, serial drivers to use new enum

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Alan Cox <alan@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>

4 files changed, 16 insertions, 13 deletions

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 130e55537db..0a1fc8a27e3 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -131,7 +131,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 	rxchan = dws->rxchan;
 
 	/* 2. Prepare the TX dma transfer */
-	txconf.direction = DMA_TO_DEVICE;
+	txconf.direction = DMA_MEM_TO_DEV;
 	txconf.dst_addr = dws->dma_addr;
 	txconf.dst_maxburst = LNW_DMA_MSIZE_16;
 	txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
@@ -147,13 +147,13 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 	txdesc = txchan->device->device_prep_slave_sg(txchan,
 				&dws->tx_sgl,
 				1,
-				DMA_TO_DEVICE,
+				DMA_MEM_TO_DEV,
 				DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
 	txdesc->callback = dw_spi_dma_done;
 	txdesc->callback_param = dws;
 
 	/* 3. Prepare the RX dma transfer */
-	rxconf.direction = DMA_FROM_DEVICE;
+	rxconf.direction = DMA_DEV_TO_MEM;
 	rxconf.src_addr = dws->dma_addr;
 	rxconf.src_maxburst = LNW_DMA_MSIZE_16;
 	rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
@@ -169,7 +169,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 	rxdesc = rxchan->device->device_prep_slave_sg(rxchan,
 				&dws->rx_sgl,
 				1,
-				DMA_FROM_DEVICE,
+				DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
 	rxdesc->callback = dw_spi_dma_done;
 	rxdesc->callback_param = dws;
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index 1cf645479bf..0afd87dd945 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -550,6 +550,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 	struct dma_async_tx_descriptor *txd;
 	enum dma_slave_buswidth buswidth;
 	struct dma_slave_config conf;
+	enum dma_transfer_direction slave_dirn;
 	struct scatterlist *sg;
 	struct sg_table *sgt;
 	struct dma_chan *chan;
@@ -572,6 +573,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 
 		conf.src_addr = espi->sspdr_phys;
 		conf.src_addr_width = buswidth;
+		slave_dirn = DMA_DEV_TO_MEM;
 	} else {
 		chan = espi->dma_tx;
 		buf = t->tx_buf;
@@ -579,6 +581,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 
 		conf.dst_addr = espi->sspdr_phys;
 		conf.dst_addr_width = buswidth;
+		slave_dirn = DMA_MEM_TO_DEV;
 	}
 
 	ret = dmaengine_slave_config(chan, &conf);
@@ -630,7 +633,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 		return ERR_PTR(-ENOMEM);
 
 	txd = chan->device->device_prep_slave_sg(chan, sgt->sgl, nents,
-						 dir, DMA_CTRL_ACK);
+						 slave_dirn, DMA_CTRL_ACK);
 	if (!txd) {
 		dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir);
 		return ERR_PTR(-ENOMEM);
@@ -978,7 +981,7 @@ static int ep93xx_spi_setup_dma(struct ep93xx_spi *espi)
 	dma_cap_set(DMA_SLAVE, mask);
 
 	espi->dma_rx_data.port = EP93XX_DMA_SSP;
-	espi->dma_rx_data.direction = DMA_FROM_DEVICE;
+	espi->dma_rx_data.direction = DMA_DEV_TO_MEM;
 	espi->dma_rx_data.name = "ep93xx-spi-rx";
 
 	espi->dma_rx = dma_request_channel(mask, ep93xx_spi_dma_filter,
@@ -989,7 +992,7 @@ static int ep93xx_spi_setup_dma(struct ep93xx_spi *espi)
 	}
 
 	espi->dma_tx_data.port = EP93XX_DMA_SSP;
-	espi->dma_tx_data.direction = DMA_TO_DEVICE;
+	espi->dma_tx_data.direction = DMA_MEM_TO_DEV;
 	espi->dma_tx_data.name = "ep93xx-spi-tx";
 
 	espi->dma_tx = dma_request_channel(mask, ep93xx_spi_dma_filter,
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 730b4a37b82..ddcddf4b124 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -910,11 +910,11 @@ static int configure_dma(struct pl022 *pl022)
 {
 	struct dma_slave_config rx_conf = {
 		.src_addr = SSP_DR(pl022->phybase),
-		.direction = DMA_FROM_DEVICE,
+		.direction = DMA_DEV_TO_MEM,
 	};
 	struct dma_slave_config tx_conf = {
 		.dst_addr = SSP_DR(pl022->phybase),
-		.direction = DMA_TO_DEVICE,
+		.direction = DMA_MEM_TO_DEV,
 	};
 	unsigned int pages;
 	int ret;
@@ -1051,7 +1051,7 @@ static int configure_dma(struct pl022 *pl022)
 	rxdesc = rxchan->device->device_prep_slave_sg(rxchan,
 				      pl022->sgt_rx.sgl,
 				      rx_sglen,
-				      DMA_FROM_DEVICE,
+				      DMA_DEV_TO_MEM,
 				      DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!rxdesc)
 		goto err_rxdesc;
@@ -1059,7 +1059,7 @@ static int configure_dma(struct pl022 *pl022)
 	txdesc = txchan->device->device_prep_slave_sg(txchan,
 				      pl022->sgt_tx.sgl,
 				      tx_sglen,
-				      DMA_TO_DEVICE,
+				      DMA_MEM_TO_DEV,
 				      DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!txdesc)
 		goto err_txdesc;
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 1d23f383186..7eba26e20ae 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1051,7 +1051,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
 	}
 	sg = dma->sg_rx_p;
 	desc_rx = dma->chan_rx->device->device_prep_slave_sg(dma->chan_rx, sg,
-					num, DMA_FROM_DEVICE,
+					num, DMA_DEV_TO_MEM,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc_rx) {
 		dev_err(&data->master->dev, "%s:device_prep_slave_sg Failed\n",
@@ -1086,7 +1086,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
 	}
 	sg = dma->sg_tx_p;
 	desc_tx = dma->chan_tx->device->device_prep_slave_sg(dma->chan_tx,
-					sg, num, DMA_TO_DEVICE,
+					sg, num, DMA_MEM_TO_DEV,
 					DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 	if (!desc_tx) {
 		dev_err(&data->master->dev, "%s:device_prep_slave_sg Failed\n",